An Overview of Skin Health-Part 2: The Role of Collagen in our Body
Collagen is the main structural protein of the different connective tissues present in all animals. It is primarily found in fibrous tissues, such as tendons and ligaments. It is also abundant in the cornea, cartilage, bones, blood vessels, the gut, and inter-vertebral discs.
The five most common types of collagen are outlined below:
Type l: Dermis, Tendon, Ligaments and Bone
Type ll: Cartilage, Vitreous Body, Nucleus Pulposus
Type lll: Skin, Vessel Wall, Reticular Fibres of most Internal Tissues such as the Lungs, Liver and Spleen.
Type lV: Forms the Basal Lamina, the Epithelium-Secreted Layer of the Basement Membranes
Type V: Lung, Cornea, Hair, Fetal Membranes and Bones.
Collagen is the major insoluble fibrous protein found in the extracellular matrix of the skin, together with elastin and hyaluronic acid. The collagen family consists of 28 different proteins which account for 25% - 35% of the total protein mass in mammals and play a pivotal role in the structure of several tissues, such as skin and bones which provide rigidity and integrity.